51123525345042 has 8 divisors (see below), whose sum is σ = 102247050690096. Its totient is φ = 17041175115012.

The previous prime is 51123525345031. The next prime is 51123525345097. The reversal of 51123525345042 is 24054352532115.

It is a sphenic number, since it is the product of 3 distinct primes.

51123525345042 is an admirable number.

It is a super-2 number, since 2×51123525345042² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51123525344985 and 51123525345003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4260293778748 + ... + 4260293778759.

It is an arithmetic number, because the mean of its divisors is an integer number (12780881336262).

Almost surely, 2^{51123525345042} is an apocalyptic number.

51123525345042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51123525345042 is a wasteful number, since it uses less digits than its factorization.

51123525345042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8520587557512.

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 51123525345042 its reverse (24054352532115), we get a palindrome (75177877877157).

The spelling of 51123525345042 in words is "fifty-one trillion, one hundred twenty-three billion, five hundred twenty-five million, three hundred forty-five thousand, forty-two".